diff --git a/wp-includes/theme.php b/wp-includes/theme.php
index 2e7e1dbbb8..ee544e25dc 100644
--- a/wp-includes/theme.php
+++ b/wp-includes/theme.php
@@ -2523,6 +2523,8 @@ function get_theme_starter_content() {
  * @since 2.9.0
  * @since 3.4.0 The `custom-header-uploads` feature was deprecated.
  * @since 3.6.0 The `html5` feature was added.
+ * @since 3.6.1 The `html5` feature requires an array of types to be passed. Defaults to
+ *              'comment-list', 'comment-form', 'search-form' for backward compatibility.
  * @since 3.9.0 The `html5` feature now also accepts 'gallery' and 'caption'.
  * @since 4.1.0 The `title-tag` feature was added.
  * @since 4.5.0 The `customize-selective-refresh-widgets` feature was added.
@@ -2535,8 +2537,9 @@ function get_theme_starter_content() {
  *              by adding it to the function signature.
  * @since 5.5.0 The `core-block-patterns` feature was added and is enabled by default.
  * @since 5.5.0 The `custom-logo` feature now also accepts 'unlink-homepage-logo'.
- * @since 5.6.0 The `post-formats` feature warns if no array is passed.
+ * @since 5.6.0 The `post-formats` feature warns if no array is passed as the second parameter.
  * @since 5.8.0 The `widgets-block-editor` feature enables the Widgets block editor.
+ * @since 6.0.0 The `html5` feature warns if no array is passed as the second parameter.
  *
  * @global array $_wp_theme_features
  *
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 946f6ecc36..eb876ae45c 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.1-alpha-53512';
+$wp_version = '6.1-alpha-53513';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.